"По душе" - то есть нравиться, соответствует внутренним желаниям. Следовательно, ≈ "украду, если ты этого желает"

I can steal you, if you want. According to our mentality, a man should have in his behaviour a bit agressive: we have some proverbs about that ( "Women love villains" "If he beats me, it means he loves me" ). But a man should not break the laws. It is also connected with the ancient tradition the groom had kidnapped the bride with her consent, if the parents of the bride were against the marriage. I think this tradition was not only in our country but also in Europe. (Shakespeare)